Energy-saving type transformer and manufacturing method thereof

Abstract

The invention provides an energy-saving type transformer and a manufacturing method thereof. The energy-saving type transformer comprises an iron core. The iron core is mainly composed of an upper iron yoke, a lower iron yoke and core columns. The energy-saving type transformer is characterized in that the three core columns are arranged and located between the upper iron yoke and the lower iron yoke; the three core columns are arranged in a shape like a Chinese character 'pin'; the intervals between the three core columns are equal. Seams are filled with high-permeability materials, a magnetic circuit is improved, and no-load losses and no-load currents of the iron core are reduced. The transformer formed by directly sewing the rolled core is treated through a seam special process, compared with a traditional linear laminated core transformer, materials can be saved, production efficiency can be improved, and the production cost can be reduced; due to the fact that the magnetic circuit can be improved through the iron core columns, noise is also relieved and obviously reduced while the no-load losses and the no-load currents are small. A transformer coil can be independently wound and then installed on the iron core, and production efficiency is improved. The economical energy-saving type transformer core is provided for the transformer industry.

Description

technical field [0001] The invention relates to a transformer, in particular to an energy-saving transformer, which belongs to the technical field of electric power and distribution transformers. Background technique [0002] At present, most of the power and distribution transformers used in my country's power industry are traditional stacked core transformers. Laminated core transformers generally use oblique joints, so punching angles are required during the processing of core silicon steel sheets, and the punched off scraps will become waste, resulting in a certain degree of waste of materials. Moreover, the corner processing of the silicon steel sheet will increase the time required for cutting the sheet and increase the workload of the core lamination, which greatly reduces the efficiency of transformer production and increases the energy consumption required for production. Under the general environment that the country advocates energy conservation, the transformer ...

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Problems solved by technology

However, this method needs to fix the coil on the iron core, which has low efficiency, requires a high level of technology, and is inconvenient for transformer assembly and maintenance.

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